JPS6364716A - Injection molding machine - Google Patents
Injection molding machineInfo
- Publication number
- JPS6364716A JPS6364716A JP20973386A JP20973386A JPS6364716A JP S6364716 A JPS6364716 A JP S6364716A JP 20973386 A JP20973386 A JP 20973386A JP 20973386 A JP20973386 A JP 20973386A JP S6364716 A JPS6364716 A JP S6364716A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- mold clamping
- pressure
- dwell
- injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001746 injection moulding Methods 0.000 title claims description 11
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 238000002347 injection Methods 0.000 abstract description 14
- 239000007924 injection Substances 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 5
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は射出成形機に関し、特に省エネルギータイプの
射出成形機に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an injection molding machine, and particularly to an energy-saving type injection molding machine.
（従来の技術）
金型の型締め機構に油圧ポンプを用い、スフリスクリュ
ーの駆動に電動サーボモータを用いたことによって、省
エネルギー化、スクリュー動作の高精度化２作動油の使
用量の削減、射出ユニットへの配管の省略、及び油漏れ
による射出ユニットの汚染の防止がはかれた。(Conventional technology) By using a hydraulic pump for the mold clamping mechanism and an electric servo motor for driving the swivel screw, we are able to save energy, improve the precision of screw operation, reduce the amount of hydraulic oil used, This eliminates piping to the injection unit and prevents contamination of the injection unit due to oil leakage.
一方、型締めの際には極めて大きな力が必要であるため
、型締め機構は油圧によって駆動される。On the other hand, since an extremely large force is required to close the mold, the mold clamping mechanism is driven by hydraulic pressure.
（発明が解決しようとする問題点）
上述のように、型締め機構には大きな力が必要であるか
ら、油圧によって駆動する必要があり。(Problems to be Solved by the Invention) As mentioned above, the mold clamping mechanism requires a large amount of force, so it needs to be driven by hydraulic pressure.
油圧ポンプが連続的に運転されている。っまり。Hydraulic pump is running continuously. Very much.
従来の射出成形機の場合、十分な省エネルギー化がはか
られていないという問題点がある。Conventional injection molding machines have the problem of not achieving sufficient energy savings.
本発明の目的は十分な型締め力が得られるとともに、省
エネルギー効果も高い射出成形機を提供することにある
。An object of the present invention is to provide an injection molding machine that can obtain sufficient mold clamping force and also has a high energy saving effect.
（問題点を解−決するための手段）
本発明による射出成形機は、金型の型締を保持するブレ
ーキ機構と、このブレーキ機構、金型の型締めを行う型
締め機構、及びスクリューを駆動する電動モータを制御
する制御装置とを備えており、型締め機構による金型の
型締め完了の後、該型締め機構への油圧をたち、前記ブ
レーキ機構によって、金型の型締めを保持するようにし
たことを特徴としている。(Means for Solving the Problems) The injection molding machine according to the present invention includes a brake mechanism that holds the mold clamped, a mold clamping mechanism that clamps the mold, and a screw that drives the brake mechanism. and a control device that controls an electric motor to control the mold, and after the mold clamping mechanism completes mold clamping, the hydraulic pressure to the mold clamping mechanism is released, and the brake mechanism maintains the mold clamping. It is characterized by the fact that
（実施例） 以下本発明について実施例によって説明する。(Example) The present invention will be explained below with reference to Examples.
第１図を参照して、固定プラテン１の一面には固定金型
２が固定され、タイバー３には可動プラテン４が移動可
能に取シ付けられている。この可動プラテン４の一面に
は可動金型５が固定されている。可動プラテン４は型締
め装置６によって駆動される。型締め装置６の油圧シリ
ンダは油圧パルプ（比例弁）７を介して油圧ポンプ８に
連結され、油圧ポンプ８は油圧タンク９に接続されてい
る。一方、型締め装置６には後述するブレーキ機加熱シ
リンダ１２が配置され、加熱シリンダ１２内にはスクリ
ュー１３が配置されている。スクリュー１３の後端部に
はスクリュー１３を回転させるための電動サーボモータ
１４が配設され、さらに回転運動を直線運動に変換する
ギヤ機構部１５を介して電動サーブモータ１６が配設さ
れている。Referring to FIG. 1, a fixed mold 2 is fixed to one side of a fixed platen 1, and a movable platen 4 is movably attached to a tie bar 3. A movable mold 5 is fixed to one surface of the movable platen 4. The movable platen 4 is driven by a mold clamping device 6. The hydraulic cylinder of the mold clamping device 6 is connected to a hydraulic pump 8 via a hydraulic pulp (proportional valve) 7, and the hydraulic pump 8 is connected to a hydraulic tank 9. On the other hand, a brake machine heating cylinder 12 (described later) is arranged in the mold clamping device 6, and a screw 13 is arranged inside the heating cylinder 12. An electric servo motor 14 for rotating the screw 13 is disposed at the rear end of the screw 13, and an electric servo motor 16 is further disposed via a gear mechanism 15 for converting rotational motion into linear motion. .
そして、この電動サーがモータ１６によってスクリュー
１３が前後進する。Then, the screw 13 is moved back and forth by the electric motor 16.
スクリュー１３にはスクリューの位置を検知するための
位置検出器１７．スクリ、−１３の前進速度を検知する
速度検出器１８．及びスクリュー１３に加わる圧力を検
出する圧力検出器１９が配置されている。一方、電動サ
ーボモータ１４にはスクリ、−１３の回転数を検出する
ための回転数検出器２０が取り付けられている。電動サ
ーボモータ１６は射出サーボ制御部２１に駆動制御され
電動サーがモータ鋤はサーボモータ制御部２２に駆動制
御される。The screw 13 is equipped with a position detector 17 for detecting the position of the screw. A speed detector 18 for detecting the forward speed of the screen -13. A pressure detector 19 is arranged to detect the pressure applied to the screw 13. On the other hand, a rotation speed detector 20 for detecting the rotation speed of -13 is attached to the electric servo motor 14. The electric servo motor 16 is drive-controlled by an injection servo control section 21, and the electric servo motor and the motor plow are drive-controlled by a servo motor control section 22.
前述の回転数検出器２０はサーボモータ制御部２２に連
結され、速度検出器１８及び圧力検出器１９は射出サー
が制御部２１に連結されている。The aforementioned rotation speed detector 20 is connected to the servo motor control section 22, and the speed detector 18 and the pressure detector 19 are connected to the control section 21.
一方１位置検出器１７は後述のコントローラ２３に連結
され、このコントローラ２３は油圧パルプ７、油圧ポン
プ８．ブレーキ機構１０．サーゴモータ制御部２２．及
び射出サーが制御部２３を制御する。On the other hand, the first position detector 17 is connected to a controller 23, which will be described later, and this controller 23 is connected to the hydraulic pulp 7, the hydraulic pump 8. Brake mechanism 10. Surgo motor control section 22. and an injection sir which controls the control section 23.
次に、上述の射出成形機の動作について説明する。Next, the operation of the above injection molding machine will be explained.
コントローラ２３にはスクリュー位置に対応してスクリ
ュー速度（前後進速度）及びスクリュー回転数力；設定
されている。樹脂材料の計量を行う際、電動サーがモー
タ１６によってスクリュー１３に背圧が加えられ、電動
サーブモータ１４によってスクリュー１３は回転する。In the controller 23, screw speed (forward/reverse speed) and screw rotational speed are set in accordance with the screw position. When measuring the resin material, back pressure is applied to the screw 13 by the electric serve motor 16, and the screw 13 is rotated by the electric serve motor 14.
ホッパ−１１から樹脂材料が加熱シリ・ンダ１２内に落
下し、スクリューの回転によシ混練されつつ、加熱シリ
ン／１２の牛攪郁へ咲ちれ、スクｌ＋−−１３Ｈ移；膠
する。この際、樹脂材料は加熱シリンダ１２によって溶
融状態となる。コントローラ２３はスクリュー位置検出
器１７からのスクリュー位置信号による位置データと予
めスクリュー位置に対応して設定されているスクリュー
背圧及びスクリュー回転数とを比較して、射出サーが制
御部２１に対して背圧指令信号（制御信号）、サーボモ
ータ制御部２２に対して回転数指令信号（制御信号）を
出力する。The resin material falls from the hopper 11 into the heating cylinder 12, is kneaded by the rotation of the screw, and is transferred to the stirring cylinder of the heating cylinder 12, where it is transferred to the cylinder 12 and becomes glue. At this time, the resin material is brought into a molten state by the heating cylinder 12. The controller 23 compares the position data based on the screw position signal from the screw position detector 17 with the screw back pressure and screw rotation speed that have been set in advance corresponding to the screw position, and the injection sensor A back pressure command signal (control signal) and a rotation speed command signal (control signal) are output to the servo motor control section 22.
射出サー？制御部２１は背圧指令信号と圧力検出器１９
からの圧力検出信号とを比較して、電動サーブモータ１
６を駆動制御する。一方、サーボモータ制御部２２は回
転数指令信号と回転数検出器２０からの回転数検出信号
とを比較して、電動サーがモータ１４を駆動制御する。Injection sir? The control unit 21 receives a back pressure command signal and a pressure detector 19.
Electric serve motor 1 is compared with the pressure detection signal from
6 is driven and controlled. On the other hand, the servo motor control unit 22 compares the rotation speed command signal with the rotation speed detection signal from the rotation speed detector 20, and controls the electric motor to drive the motor 14.
そして、スクリュー１３が所定の後退限に達すると、電
動サーボモータ１４及び１６を停止し、計量が完了する
。Then, when the screw 13 reaches a predetermined retraction limit, the electric servo motors 14 and 16 are stopped, and metering is completed.
計量と同時に、コントローラ２３Ｆｉ油圧ポンプ８を駆
動するとともに油圧パルプ７を制御して。Simultaneously with metering, the controller 23Fi drives the hydraulic pump 8 and controls the hydraulic pulp 7.
型締め装置６によシ可動プラテン４を実線矢印で示す方
向に移動させ、固定金型２と可動金型５とを型締めする
。型締めが完了すると、コントローラ２３は油圧ポンプ
８を停止するとともに電磁ブレーキ１０を動作させて型
締め状態を保持する。The movable platen 4 is moved in the direction shown by the solid arrow by the mold clamping device 6, and the fixed mold 2 and the movable mold 5 are clamped. When the mold clamping is completed, the controller 23 stops the hydraulic pump 8 and operates the electromagnetic brake 10 to maintain the mold clamping state.
溶融樹脂の射出の際、電動サーブモータ１６か原動され
、スクリュー１３が前進する。前述のように、コントロ
ーラ２３はスクリュー位置信号に基づいて速度指令信号
を送出し、射出サーが制御部２１は速度検出信号と速度
指令信号に基づいて電動サーがモータ１６を駆動制御す
る。これによって溶融樹脂が所定の射出速度で加熱シリ
ンダ１２の先端から金型キャビティに射出、充填される
。When injecting the molten resin, the electric serve motor 16 is driven to move the screw 13 forward. As described above, the controller 23 sends out a speed command signal based on the screw position signal, and the injection servo controller 21 drives and controls the motor 16 based on the speed detection signal and the speed command signal. As a result, the molten resin is injected and filled into the mold cavity from the tip of the heating cylinder 12 at a predetermined injection speed.
保圧工程の際には、コントローラ２３に保圧時間に応じ
て設定された保圧圧力の指令がコントローラ２３から射
出サーボ制御部２１に出力される。During the pressure holding process, a holding pressure command set in the controller 23 according to the pressure holding time is output from the controller 23 to the injection servo control section 21.
射出サーボ制御部２１はとの保圧圧力指令と、圧力検出
器１９からの圧力検出値（圧力検出信号）とを比較して
、電動サーブモータ１６を駆動制御して、所定の保圧状
態に保つ。そして、保圧工程終了の後、金凰内材料の冷
却を行う。The injection servo control unit 21 compares the holding pressure command with the pressure detection value (pressure detection signal) from the pressure detector 19, and drives and controls the electric serve motor 16 to maintain a predetermined pressure holding state. keep. Then, after the pressure holding process is completed, the material inside the gold hood is cooled.
冷却終了の後、コントローラ２３は電磁ブレーキ１０を
オフとして、油圧ポンプ８を駆動するとともに油圧バル
ブを制御する。これによって、型締め装置６は可動プラ
テン４を破線矢印で示す方向に移動させて、金型を開く
。After cooling is completed, the controller 23 turns off the electromagnetic brake 10, drives the hydraulic pump 8, and controls the hydraulic valves. As a result, the mold clamping device 6 moves the movable platen 4 in the direction indicated by the broken arrow to open the mold.
このように、上述の実施例では、型締め装置を油圧で駆
動させ、金型の型締めを完全に行った後。In this way, in the above-mentioned embodiment, the mold clamping device is hydraulically driven, and after the mold is completely clamped.
油圧ポンプを停止して、電磁ブレーキをオンとして金型
の型締め状態を保持している。つまシ、電磁ブレーキを
型締め状態保持に用いることで、油圧ポンプを用いて型
締め状態を保持する場合に比べて、エネルギーの消費が
少なくなる。The hydraulic pump is stopped and the electromagnetic brake is turned on to maintain the mold clamped state. By using a pick and an electromagnetic brake to maintain the mold clamping state, energy consumption is reduced compared to the case where a hydraulic pump is used to maintain the mold clamping state.
（発明の効果）
以上説明したように２本発明では、型締め完了の後、油
圧ポンプを停止して、ブレーキ機構によって型締め状態
を保持するようにしたから、十分な型締め力が得られる
とともに省エネルギー効果も十分な射出成形機を提供で
きる。(Effect of the invention) As explained above, in the second invention, after the mold clamping is completed, the hydraulic pump is stopped and the mold clamping state is maintained by the brake mechanism, so that sufficient mold clamping force can be obtained. At the same time, it is possible to provide an injection molding machine with sufficient energy-saving effects.
第１図は本発明による射出成形機の一実施例を示す図で
ある。
１・・・固定プラテン、２・・・固定金型、３・・・タ
イツぐ−９４・・・可動プラテン、５・・・可動金型、
６・・・型締め機構、７・・・油圧バルブ、８・・・油
圧ポンプ、９・・・タンク、１０・・・電磁ブレーキ、
１１・・・ホツノクー。
１２・・・加熱シリンダ、１３・・・スクリュー、１４
・・・電動サーブモータ、１５・・・ギヤ機構、１６・
・・電動サーブモータ、１７・・・位置検出器、１８・
・・速度検出器、１９・・・圧力検出器、２０・・・回
転数検出器。
２１・・・射出サーボ制御部、２２・・・サーボモータ
制御部、２３・・・コントローラ。FIG. 1 is a diagram showing an embodiment of an injection molding machine according to the present invention. 1... Fixed platen, 2... Fixed mold, 3... Tights-94... Movable platen, 5... Movable mold,
6... Mold clamping mechanism, 7... Hydraulic valve, 8... Hydraulic pump, 9... Tank, 10... Electromagnetic brake,
11...Hotsunoku. 12... Heating cylinder, 13... Screw, 14
...Electric serve motor, 15...Gear mechanism, 16.
...Electric serve motor, 17...Position detector, 18.
...Speed detector, 19...Pressure detector, 20...Rotation speed detector. 21... Injection servo control section, 22... Servo motor control section, 23... Controller.
Claims (1)
ューを駆動する電動モータとを備え、前記金型内に形成
されるキャビティに溶融樹脂を射出する射出成形機にお
いて、前記金型の型締めを保持するブレーキ機構と、該
ブレーキ機構、前記型締め機構、及び電動サーボモータ
を制御する制御装置とを有し、前記型締め機構による金
型の型締め完了の後、該型締め機構への油圧を停止して
、前記ブレーキ機構によって、前記金型の型締めを保持
するようにしたことを特徴とする射出成形機。1. In an injection molding machine that injects molten resin into a cavity formed in the mold, the machine is equipped with a hydraulic mold clamping mechanism that clamps the mold and an electric motor that drives a screw. a brake mechanism that maintains the mold clamping, and a control device that controls the brake mechanism, the mold clamping mechanism, and an electric servo motor, and after the mold clamping mechanism completes mold clamping, the mold clamping mechanism An injection molding machine characterized in that hydraulic pressure to the mechanism is stopped and the mold is kept clamped by the brake mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20973386A JPS6364716A (en) | 1986-09-08 | 1986-09-08 | Injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20973386A JPS6364716A (en) | 1986-09-08 | 1986-09-08 | Injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6364716A true JPS6364716A (en) | 1988-03-23 |
Family
ID=16577736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20973386A Pending JPS6364716A (en) | 1986-09-08 | 1986-09-08 | Injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6364716A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001047686A1 (en) * | 1999-12-28 | 2001-07-05 | Ube Machinery Corporation, Ltd. | Mold clamping device, method of increasing/decreasing pressure for such device, and mold releasing method |
| CN114295480A (en) * | 2021-12-29 | 2022-04-08 | 深圳中宝集团有限公司 | Energy-saving method for gold bonding wire tension testing equipment and tension testing equipment |
-
1986
- 1986-09-08 JP JP20973386A patent/JPS6364716A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001047686A1 (en) * | 1999-12-28 | 2001-07-05 | Ube Machinery Corporation, Ltd. | Mold clamping device, method of increasing/decreasing pressure for such device, and mold releasing method |
| US6805827B2 (en) * | 1999-12-28 | 2004-10-19 | Ube Machinery Corporation, Ltd. | Mold clamping device, method of increasing/decreasing pressure for such device, and mold releasing method |
| CN114295480A (en) * | 2021-12-29 | 2022-04-08 | 深圳中宝集团有限公司 | Energy-saving method for gold bonding wire tension testing equipment and tension testing equipment |
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